Product description
400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
The AD9951 is a direct digital synthesizer (DDS) featuring a 14-bit DAC operating up to 400 MSPS. The AD9951 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a digitally programmable, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9951 is designed to provide fast frequency hopping and fine tuning resolution (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9951 via a serial I/O port.
Features
* 400MSPS internal clock speed
* Integrated 14-bit DAC
* 32-bit tuning word
* Phase noise < -120dBc/Hz @ 1kHz offset (DAC output)
* Excellent dynamic performance
* >80dB SFDR @ 160MHz (+/-100kHz offset) AOUT
* Serial I/O control
* 1.8V power supply
* Software and hardware controlled power-down
* Support for 5 V input levels on most digital inputs
* PLL REFCLK multiplier (4× to 20×)
* Internal oscillator, can be driven by a single crystal
* Phase modulation capability
* Multichip synchronization
Applications
* Agile LO frequency synthesis
* Programmable clock generators
* Test and measurement equipment
* Acousto-optic device drivers
The AD9951 is a direct digital synthesizer (DDS) featuring a 14-bit DAC operating up to 400 MSPS. The AD9951 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a digitally programmable, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9951 is designed to provide fast frequency hopping and fine tuning resolution (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9951 via a serial I/O port.
Features
* 400MSPS internal clock speed
* Integrated 14-bit DAC
* 32-bit tuning word
* Phase noise < -120dBc/Hz @ 1kHz offset (DAC output)
* Excellent dynamic performance
* >80dB SFDR @ 160MHz (+/-100kHz offset) AOUT
* Serial I/O control
* 1.8V power supply
* Software and hardware controlled power-down
* Support for 5 V input levels on most digital inputs
* PLL REFCLK multiplier (4× to 20×)
* Internal oscillator, can be driven by a single crystal
* Phase modulation capability
* Multichip synchronization
Applications
* Agile LO frequency synthesis
* Programmable clock generators
* Test and measurement equipment
* Acousto-optic device drivers